Please read through this manual
before using the product.

TWiNY & TWiNY

MANUAL

Controlled Medical Devices

Light and Heat Cured Indirect Composite Resin
222AABZX00121000

Yamamoto Precious Metal Co.,Ltd.

Yamamoto Precious Metal Co., Ltd.
Head Office: 3-7 Sanadayama-cho Tennoji-ku Osaka 543-0015, Japan
Branch Office: Tokyo, Osaka, Sendai, Nagoya, Fukuoka, JAPAN
Factory and R&D: Kochi, JAPAN
P: +81-6-6761-8338 F: +81-6-6761-0610
E: contact@yamakin-gold.co.jp

http://www.yamakin-gold.co.jp

INTERNATIONAL20130205

INDEX
2
2
2
3

Contraindications and Prohibitions
Shapes, Composition and Principles
N.B. : Technical Directions and Points for Attention
Precautions
1.Precautions
2.Important Basic Cautions
3.Other Cautions

3

Handling, Storage and Expiry Date
(Handling and Storage)
Expiry Date

44

Intended use and effect/efficacy
Chraracteristics
1.Safety
2.Properties
3.Handling
4.Color

5 - 10 Shade Color Table
１.１ Invisible Opaque
１.２ Opaque
２.１ Opaque Dentine
２.２ Cervical
２.３ Dentine
２.４ Enamel
Red-plus Shades
Special Opaque Colors
Whitening Shades
Gum
Gum Stain
Trans Enamel
Translucent
EffectBase
TWiNY Flow
Luna-Wing Primer Paste
Repair Primer (Repair Primer for non-precious alloys for additional build-up)
Repair Liquid
C&B Resin Spacer
C&B Resin Separator

11
11
12
13-30

1

Curing Schedule
Basic Layering Technique
TWiNY Basic Layering Step
Basic Layering Technique
Basic Build-up Layering for Jacket Crown
Basic Build-up Layering for Inlay and Onlay
Basic Build-up Layering for Facing Crown, Bridges and Gum
TWiNY Flow Application Examples● TWiNY Flow Example for Molar Jacket Crown● TWiNY Flow Example for Facing Crown● TWiNY Flow Example of Gingival area
● TWiNY Flow Example of Inlay Cavity Bottom and Pontic Area
1. Features of polishers● C&B Diamond Polisher● C&B NANO Diamond Polisher
2. Polishing occlusal surface of posterior tooth
3.Finishing

Controlled Medical Devices
Light and Heat Cured Indirect Composite ResinTWiNY is a hybrid composite resin made of ceramic cluster filler. It offers not only easy handling and excellent
aesthetics, but also high product density and outstanding toughness.
Thanks to its“anchor effect”(holding the product in place as if by anchor), decreases in product density andfractures are prevented, even if the product is used in the mouth over a long period. Biological safety tests basedon global standard ISO 10993“Biological evaluation of medical devices”have been conducted on TWiNY. Also,
our company’s original biogenetic evaluation tests on cell, tissue have also revealed further details of the effectTWiNY in the mouth. .

Contraindications and Prohibitions
Do not use this product on patients who have a history of allergy (such as skin irritation) to this product ormethacryl monomer.

Shapes, Composition and Principles
This product consists of the following items and contains ingredients below:

Item

state

ingredients

Opaque Resin

Paste

metacrylate monomer, inorganic fillers, pigments, etc.

Body Resin，Body Resin Flow

Paste

metacrylate monomer, inorganic fillers, pigments, etc.

Stain

Paste

metacrylate monomer, inorganic fillers, pigments, etc.

Repair Primer

LiquidEthanol, etc.

Repair Liquid

Liquidmetacrylate monomer, etc.

Luna-Wing Primer Paste

Paste

Silane Coupling Agent, etc.

Principles: This material is a light-cure type, cured by visible light and heat.
Items marked“Flow”have low viscosity, and are referred to as Body Resin Flow or TWiNY Flow.
On the other hand, normal types are referred to as“Body Resin”or“Paste Type”.

N.B. : Technical Directions and Points for Attention
１．For light-curing, use a dental light curing machine intended for use by dental technicians, equipped withhalogen lamp, xenon lamp, metal halide lamp and LED lamp, and with an effective wavelength of 400-500
nano-meters. For heat-curing, use a dental heat curing machine which can be set at 110℃ for 15 minutes.
In cases where other medical curing equipment is to be used, or if you have any questions about curingmachines, please feel free to contact us.
２．If this product is used for cases with a high risk of fractures, such as malocclusion or bruxism, the occlusal
surface must be metal-coated in order to avoid fracturing.
３．Close the cap promptly and tightly after using this product.
４．Use separate brushes for Primer Paste, Opaque, TWiNY Flow, Stain, Repair Primer, Repair Liquid and Resin
Air Barrier.
５．When applying TWiNY body resin, do not push too hard when using a metallic instrument. It may cause theresin to darken, since the inorganic fillers in TWiNY will scrape against the surface of the metal instrument.
Plastic instruments or instruments coated with hard materials such as titanium nitride are recommended for
TWiNY application.
６．This material is in use on a pallet or on mixing paper, it should be protected by a shade cover.
７．Do not mix body resin with other materials, and do not mix more than one type of body resin to prevent air
bubble entrapping and deterioration in quality of material properties.
８．It is technically unproblematic to mix more than two different TWiNY Flow products, but do not mix TWiNY
Flow and TWiNY body resin.
９．TWiNY Flow is subject to air bubble formation during mixing. Please mix carefully.
10．Please note that TWiNY Flow has larger polymerization shrinkage than TWiNY body resin.
11. As TWiNY Flow has the property of thixotropy*, the material near the tip of the nozzle can harden andbecome difficult to push out later. Please pull the piston back about 2mm when storing after use.
12. Stain must be applied on internal layer; please use Enamel or other products after Stain application.
13. Avoid exposures to strong light or sunlight (near windows or laboratory lights, etc.) in order to prevent
hardening of paste.
14. Do not use Base on facing part, as Base is designed only for pontic area.
* Thixotropy: the material’s viscosity becomes higher as pressure is increased.

2

Precautions

Intended use and effect / efficacy

1. Precautions

This product is a light-and heat-cure type composite resin for dental crown restoration and temporary
crowns, such as facing crowns, jacket crowns, and bridges. Do not use this product for other purposes.

① Keep Repair Primer, Resin Air Barrier and Resin Separator away from fire.
② Provide adequate ventilation (several times per hour).
③ When cutting or polishing cured products, use exhaust fan and anti-dust mask as approved by yourlocal public safety agency in order to avoid inhaling dust. Wear safety goggles to protect the eyes.
④ Any usages other than those specified in this manual must be avoided.
⑤ Do not use this product in combination with other products.
⑥ Only adequately certified personnel should handle this product.
⑦ Do not operate the syringe at low temperature as it may break. Please use this product at an
ambient temperature of around 20℃. For example, if the product is stored at 4℃, leave it for about
20 minutes at 20℃ room temperature. 20℃~25℃ is the optimal temperature for easy handling.
⑧ Storing Resin Air Barrier in the low temperature for long periods of time will increase the viscosity.
(In such case, close the cap tightly and place product in hot water for about 5min. to decrease theviscosity.)

Test Method : ISO 10477[Product Specification]
This Product is a light-cure type composite
resin for dental crowns and bridges classified as
ISO10477, Dentistry-polymer-based crown andbridge materials that contain a light or
UV-sensitive initiator; Type2, Class 2.

TWiNY
Body Resin

TWiNY
Flow

Hardness (Hv0.2)

105

77

Flexural Strength (MPa)

239

201

Water Sorption (μg/mm3)1422

Solubility (μg/mm3)

0.1

0.1

Characteristics
1.Safety

2. Important Basic Cautions

This product conforms to JIS T 6517 (ISO 10993-1), and biocompatibility has been confirmed throughevaluation testing.
This product passed our own biological safety tests based on biogenetic, cell and tissue evaluation.

① Stop using this product immediately if any signs of allergy, such as irritation or rash, appears in patients.
If symptoms persist, seek medical attention.
② Operators must discontinue use if any signs of irritation or rash appear. If symptoms persist, seek
medical attention.
③ Do not handle non-cured materials of this product with bare hands. Wear plastic gloves and safety
goggles to protect from irritation. Avoid direct contact with skin and eyes. In case of skin contact,wipe with alcohol cotton swabs, and flush with copious running water. In case of eye contact,
immediately rinse with copious running water, and seek medical attention.

“Luna-Wing”, product, making it one of the highest-density filler products on the market.

3. Other Cautions

3. Handling

Crown restoration area may be stained and plaque-adherent depending on patients’dietary habits. Advise
daily oral cleaning.

Opaque Resin is same as our product“Luna-Wing”. Its viscosity is carefully calibrated to prevent
unnecessary pooling and dripping. Also, brushstrokes do not remain on the product after use.
The consistency of Body Resin is also calibrated to prevent it sticking onto the spatula. This ensures
outstanding operability during build-up.
TWiNY Flow has optimal flowability; the consistency is optimally set so as to avoid unnecessary
polling and dripping. TWiNY Flow’s nozzle is designed with a 0.7mm opening, so it is suitable for direct
application. This property makes it possible to express delicate color tones for reproducing natural
tooth appearance.

Handling, Storage and Expiry Date
(Handling and Storage)① This product must be stored in out of contact with direct light sources at a temperature of
4-25℃.
② Do not store too many products in the same storage area.
③ Storage and working areas must be equipped with fire extinguisher(s).
④ Keep out of reach of personnel other than dental staff.

2. Properties
Hybrid indirect composite resin is required a sufficient degree of toughness to be used for molars.
Ceramic Cluster technology makes it possible to achieve high flexural strength and fatigue resistance.
Moreover, our resin matrix is constructed through nano-technology which has been adopted for our

４. Color
Opaque Dentine is available for all basic shades, to improve the restoration of natural teeth. Also, we
have a wide range of white shade colors for aesthetic practice treatment. Gum shades are very usefulfor implant superstructures.
TWiNY Flow is designed in the same color tones as TWiNY Paste type. There are four basic shades for
Cervical, and five effect shades for characterization and Transparent layering. There are also eightTranslucent shades, and even Gum shades for color adjustment.

Expiry Date

3

① This product must be used before the expiry date printed on the package.
② The expiry date printed on the package is based on our authentication.
③ The expiry date printed on the package refers to use expiry date.
*(ex.;
YYYY-MM means the last day of YYYY‘year’/MM‘month’as the expiry date)4

Shade Color Table■ Basic Shades

A1

A2

A3

A3.5

A4

B1

B2

B3

Invisible Opaque

Opaque

B4

C1

C2

C3

C4

D2

D3

D4

OB4

OC1

OC2

OC3

OC4

OD2

OD3

OD4

IvO

OA1

OA2

Cervical

OA3

OA3.5

CA1

OA4

OB1

OB2

OB3

CB1

CA2

CB2

CC1

CC2

CD1

CD2

Opaque Dentine

ODA1

ODA2

ODA3

ODA3.5

ODA4

ODB1

ODB2

ODB3

ODB4

ODC1

ODC2

ODC3

ODC4

ODD2

ODD3

ODD4

Dentine

DA1

DA2

DA3

DA3.5

DA4

DB1

DB2

DB3

DB4

DC1

DC2

DC3

DC4

DD2

DD3

DD4

Enamel

E2

E1

E2

E4

E3

■ Red-plus Shades

A1

E3

E4

A2

A3

A3.5

OA2 R

OA3 R

OA3.5 R

E3

E2

E3

E4

A4

[ Basic Shades ]Opaque1.1Invisible OpaqueInvisible Opaque is low-flowable opaque resin that flows into the undercut of retention beads toenhance physical bonding strength between metal and resin.

Cervical

CA1 R

CA2 R

1.2 Opaque
Opaque resin for metal surface control.

Opaque Dentine

ODA2 R ODA3 R ODA3.5 R

2.1 Opaque Dentine
Body resin to prevent percolation of opaque color when there is extremely thin space for build-up, andto express further color depth. Apply thinly under Dentine layer when there is 0.5mm thickness.

Dentine

DA2 R

DA3 R

DA3.5 R

2.2 Cervical
Body resin for natural color expression around cervical area.

2.3 Dentine
Enamel5

E3

E4

Body resin to express dentine.

2.4 Enamel
Body resin to express enamel.

6

Special Opaque Colors
Opaque resin for natural color expression. Use on incisal
or cervical area when reflection of Opaque color is strong.

Characterizing Opaque and Body resin to reproduce gum or express discolored gum, etc.

InO1

InO2

MO

In01 (gray), In02 (gray, purple) Primer color to give artificialtranslucency to connector of connected teeth and anterior incisaledge (when there is metal close to incisal edge).

InO1
InO2

Incisal OpaqueMO

Margin OpaqueOrange and beige color to emphasize cervical color.

Whitening Shades
Opaque and Dentine to express
whiter color tones than the basic
shade, A1.

W0

W1

OW1

Opaque

W2

OW2

W3

OW3

OG1

To express light pink gum.

OG2

To express orange pink gum.

OG3
OG4

DW0

DW1

DW2

DW3

To express dark red gum.
To express orange gum.

G1

Light pink gum color to express gum.

G2

Dark pink gum color to express gum.

G3

Light orange pink gum color to express gum.

G4

OW1
OW2

Dark orange pink gum color to express gum.

G7

Dark red gum color to express gum.

G Or

Orange gum color to express gum.

Whitest Dentine in the lineup.

DW1

White Dentine next to DW0.

To express melanin pigment.
To express transparency on the surface of gum.

Whitening Dentine

G Dark Red
GDRWhite Dentine between DW2 and DA1.

G1

Gum
Opaque

G2

OG 1

G1

G3

OG 2

G2

G Red
G Red

G Milky
G Mky

G Violet
G Vlt

White Dentine next to DW1.

Gum Shades

Gum
Modifier

Gum Modifier

Gum Stain

DW0

DW3

7

Orange pink gum color to express gum.

E1

White Opaque next to OW1.
White Opaque between OW2 and OA1.

Gum

Normal gum color to express gum.

Whitest Opaque in the lineup.

Whitening Opaque

OW3

DW2

Gum

G6

GM Trans

E0

To express dark orange pink gum.

OG Or

GM Gray

EnamelTo express normal orange pink gum.

OG5

G5

DentineGum Opaque

G3

G4

G5

OG 3

G4

G6

OG 4

G5

G7

OG 5

G6

G7

G Or

OG Or

Characterizing paste to express discolored teeth. Expresses effective color tone by thin layer
application. Apply with a round brush after the light cure of opaque or body resin, and light cure forabout 60 sec.
As internal stain, certainly form body resin after the light cure.
* Cannot be used as external stain on surface.

G DarkRed Gum Dark Red

To express blood vessels

G Red

To accent redness of gum

Gum RedG Milky Gum Milky

To reproduce dental alveoli and white bands

G Violet Gum Violet

To express melanin pigment.

G Or

8GM Gray GM TransTrans Enamel

TWiNY FlowTo express transparency or translucency between Translucent and Enamel.

TE
DA3 Flow E3 Flow CA1 Flow CA2 Flow

Translucent

HVT

T

LVT

CT1

CT2

CT3

CT4

T GlassWE Flow AM Flow OC Flow

Coffee Flow Orange FlowTE Flow HVT Flow

T Flow

LVT Flow CT2 Flow CT4 Flow T Glass Flow

G1 Flow

G5 Flow

G7 Flow G Or Flow GM Gray Flow GM Trans Flow

T BlueBody resin to express translucency.
HVT

High Value Translucent

Translucent with high brightness

TTranslucent

Normal translucent

LVT

Low Value Translucent

Translucent with low brightness

CT1
CT2
CT3

G3 Flow

T Blue Flow

Light orange and pink translucent for gum color.For cervical area expression.
Light orange and pinkish translucent for cervical area.

TWiNY Flow is designed in the same color tones as TWiNY Paste type. There are four basic shades for
Cervical, five Effect shades for characterization and Transparent layering. There are also eightTranslucent shade and even Gum shades for color adjustment. TWiNY Flow has optimal flowability, theconsistency is optimally set so as to avoid unnecessary dripping. This property makes it much easier toexpress delicate color tones for reproducing natural tooth appearance than it would be using Paste type.
Even though it is a flow type, it exhibits over 200MPa flexural strength and the hardness is about
80HV, which means high impact resistance. It enables TWiNY Flow to be used as a characterizing item
for occlusal surface of molars. TWiNY Flow is useful for cases such as applying to cervical area andcavity bottoms, the color expression of pits and fissures, building up Enamel ridges, adjusting color tonesof gingival area, repairing air bubbles, pouring in pontic area, etc.

Cervical Translucent
Orange translucent for cervical area.

CT4

Yellowish translucent for cervical area.

T Glass Translucent Glass

Translucent with highest transparency in the lineup.

T BlueBlue Translucent for incisal edge.

Translucent Blue

EffectLuna-Wing Primer Paste

HV WE

WE

AM

OC

CoffeeOrangePrimer Paste is a bonding primer material for non-precious alloys. It cannot be used on gold alloys.

Repair Primer (Repair Primer for non-precious alloys for additional build-up)
Before building up additional layers for repair purposes, Repair Primer should be applied on the surface ofthe resin in order to improve the adhesive strength. Apply Repair Primer first and then apply Repair Liquid.

Characterizing Body resin to express discolored teeth
HV WE Hight Value White Enamel
WE* Applying too much Repair Primer may lower the bonding strength. Apply it with a brush as thinly as possible.
* This product is a flammable liquid, and is exported as a hazardous product.

Enamel Color with higher intensity (whiter) than WE

White Enamel

Enamel color with high intensity.
To express proximal surface and white bands.
Whiter than E0 and not as transparent as Enamel E0.

AM

Amber

To express orangish translucent (amber color)OC

OcclusalVery light orange color for occlusal area of molars.

CoffeeCoffeeTo accent brown color like coffee.

OrangeOrangeTo accent orange color

Repair Liquid
For additional build-up after shape modification, apply Repair Liquid after Repair Primer. This improves
adaptability between the hardened surface of the resin and the newly-applied resin.

C&B Resin Spacer
This product is a resin spacer which substantially resolves the issue of the unpleasant smell of natural
rubber spacers. It provides an ideal space for cementing between a Jacket Crown and an abutment
tooth. This product can cope with the most demanding dental techniques.
Apply Resin Spacer on a plaster model(except the margin area)to form a film. This space secures the thicknessof the cement and it also prevents the jacket crown sticking on the plaster model due to resin curing shrinkage.

C&B Resin Separator

Base

9

Body resin as base to fill pontic part of bridge, etc.
Translucent color with deep light-cure depth designed only for pontic part.
It cannot be used on facing part.

Base

This is a mold releasing product. It provides for the easier removal of jacket crown mold. This productcan cope with the most demanding dental techniques.
Apply Resin Separator on margin area or cavity area of a plaster model evenly and completely and dry.
Then apply composite resin TWiNY and light cure it. If there is an undercut area in the cavity, block it
out with wax before application.

10

Curing Schedule
Light curing and heatcuring schedule is asfollows;

TWiNY Basic Layering Step
Conventional
Curing TimeName

Yamakin
LED CURE MasterLuna-Wing Primer Paste

About

90 sec.

About 10 sec.

Invisible Opaque

About

90 sec.

About 10 sec.

OpaqueAbout 180 sec.

About 30 sec.

Body Resin/TWiNY Flow

About

60 sec.

About 10 sec.

Base

About 180 sec.

About 30 sec.

Final Light Curing

About 180 sec.

About 90 sec.

Heat Curing

About110℃, About15 Min.

Jacket Crown

Inlays,Onlays

Facing Crown

Metal frame preparation

Plaster modeling
RESIN SPACER

Metal frame surface preparation

RESIN SEPARATOR

Luna-Wing Primer Paste ＋ light-cure*Apply Primer Paste and leave it for 120sec., them light cure[About 90sec.] [LED About 10sec.]

Basic Layering Technique

OPAQUE&light-cure

INVISIBLE OPAQUE & light-cure[About 90sec.] [LED About 10sec.]

Jacket Crown

Covering a top of retention beads

Facing Crown

BASE on pontic & light-cure[About 180sec.] [LED About 90sec.]

ENAMEL

ENAMEL

1 / 3 area

1/3 area

OPAQUE & light-cure[About 180sec.] [LED About 30sec.]
Repeat Opaque process Until metal color is blocked

BODY (CERVICAL, DENTINE & ENAMEL) and flowable type & light-cureLight-cure About 60 sec at each application

DENTINE
0.8〜1.0mm

AIR BARRIER & dry

DENTINE
0.8〜1.0mm

OPAQUE[About 60sec.] [LED About 10sec.][Dry for About 60sec.]

OPAQUEINVISIBLE OPAQUE

Final light-curing[About 180sec.] [LED About 90sec.]

Shape modification

Posterior (Jacket)
1.3〜1.8mm

Posterior (Inlay)

Moer than 1.0mm

1.3〜1.8mm

Apply REPAIR PRIMER & REPAIR LIQUID when
additional body application is required

Heat-curing

Moer than 1.0mm[About 110℃, About 15min.]

ENAMEL

Correction & Polish
Buff and Diamond polisher or Nano Diamond Polisher

Inner surface Treatment

11

More than
0.8mm

DENTINE

Sandblast inner surface with alumina particles

OPAQUECOMPLETE

12

Basic Build-up Layering for Jacket Crown* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

1. Resin Spacer Application

6. Enamel Application and Light Curing

Make a plaster model in accordance with normal practice.
Apply TWiNY Resin Spacer on surface, except marginarea, and dry.

Apply Enamel to form the required crown shape and light
cure for about 60 sec.

2. Resin Separator Application

7. Translucent Application and Light
CuringFor easier removal of jacket crown mould, apply TWiNY
Resin Separator thinly on margin area, and dry.

In cases where Translucent is required, apply Translucent
and light cure for about 60 sec.
Using Body Resin Flow can avoid entrapping of air andmakes it easier to create delicate color tones and shaping.

3. Opaque Application and Light Curing

8. Final Light Curing

Apply Opaque with a flat brush and light cure for about
180 sec. If metal color is still seen, repeat this step until
the metal color is completely concealed.

After final layering, apply TWiNY Resin Air Barrier as thinly
as possible to avoid immature curing and leave it for
about 60 sec. to dry. Then light cure it for about 180
sec. as a final light curing. If Air Barrier is applied thickly, it
is difficult to dry. The brush used to apply Air Barrier
should be washed with water after use.

4. Cervical (Opaque Dentine) Applicationand Light Curing

9. Corrections to ShapeCorrect the shape using a carborundum or diamond point.

Apply Cervical or Opaque Dentine starting from the neckto the central area and applying progressively thinner,
taking subsequent color gradation into consideration. Light
cure for about 60 sec.

5. Dentine Application and Light Curing
Apply Dentine to form the required dentine core shapeand light cure for about 60 sec.
Using Body Resin Flow makes it easier to layer cervicalarea and cavity bottom.

13

10. Additional Layering Preparation after
Corrections to Shape (1)In cases where additional layering after correcting theshape is needed, apply Repair Primer thinly with a brushon grained corrected surface and leave it for about 60
sec. to dry.

14

Basic Build-up Layering for Jacket Crown* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

11. Additional Layering Preparation after
Corrections to Shape (2)Apply Repair Liquid thinly on the same area.

16. Internal Treatment to Finish
Finally, sand-blast (about 0.1 ～ 0.2Mpa) the inside of thejacket crown using alumina powder (about 50μm), thenuse steam cleaner or ultrasonic cleaner to wash, and thendry.
When the jacket crown is placed in the mouth, apply
Repair Primer thinly and dry before applying cement on
the jacket crown. This improves the bonding strength.

12. Additional Build-up Layering
Apply composite resin such as Dentine or Enamel
correspondingly and light cure. Apply TWiNY Air Barrier on
the additional layering area, then light cure for about 180
sec. as a final curing. Again correct and adjust the shape
to finish.

13. Heat Curing
Remove the jacket crown from the plaster model andheat cure it at about 110℃ for about 15 minutes using aheat curing machine.

14. Finishing
Remove any scars with paper cone and silicone point tomake the surface smooth.

15. Glazing
Polish for glazing by using brush or fabric buff with C&B
Diamond Polisher or C&B Nano Diamond Polisher.

15

16

Basic Build-up Layering for Inlay and Onlay* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

1. Preparation for Layering

6. Final Light Curing

Make a plaster model in accordance with normal practice.
If there are under-cut spaces in the cavity, block them out
using TWiNY Resin Spacer.

After final layering, apply TWiNY Resin Air Barrier as thinly
as possible to avoid immature curing and leave it for
about 60 sec. to dry. Then light cure it for about 180
sec. as a final light curing. If Air Barrier is applied thickly, it
is difficult to dry. The brush used for Air Barrier should be
washed with water.

2. Resin Separator Application

7. Corrections to Shape

Apply C&B Resin Separator in the cavity and dry.

Correct the shape using a carborundum or diamond point.

3. Dentine Application and Light Curing

8. Additional Layering Preparation after
Corrections to Shape (1)Apply Dentine from the cavity bottom and light cure forabout 60 sec. In case the abutment color is required tobe concealed, or light goes through unnecessarily, apply
Opaque or Opaque Dentine at the bottom of the cavity.
Using Body Resin Flow makes it easier to layer cervicalarea and cavity bottom.

4. Cervical Translucent* Application andLight Curing
Apply Cervical Translucent * at the occlusal surface of thecavity and light cure for about 60 sec.
* CT1, CT2, CT3 and CT417

In cases of additional layering after correcting the shape,
apply Repair Primer thinly with a brush on grainedcorrected surface and leave it for about 60 sec. to dry.
Then apply Repair Liquid thinly on the same area. Then
apply composite resin such as Dentine or Enamel
correspondingly. Apply TWiNY Air Barrier on the additional
layering area, then light cure for about 180 sec. as a final
curing. Again correct the shape to finish.
(These steps are the same as for Jacket Crown, page 10 to 12.）

9. Heat Curing
Remove Inlay or Onlay from the plaster model and heat
cure it at about 110℃ for about 15 minutes using a heatcuring machine.

5. Enamel Application and Light Curing

10. Finishing

Apply Enamel to form the required crown shape and light
cure for about 60 sec.
Using Body Resin Flow can avoid entrapping of air andmakes it easier to create delicate color tones and shaping.

Remove any scars with paper cone and silicone point tomake the surface smooth.
In cases where color tone adjustment is required, use
Stain or Effect.
* If Stain is used, Translucent or T Glass should be used to cover
Stain area.

18

Basic Build-up Layering for Inlay and Onlay

Basic Build-up Layering for Facing Crown, Bridges and Gum* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

11. Glazing

1. Preparation for Layering

Polish for glazing by using brush or fabric buff with C&B
Diamond Polisher or C&B Nano Diamond Polisher.

PMake a plaster model in accordance with normal
practice. Make the crown shape using wax, and makespaces between crowns; then apply bonding material andretention beads on facing part to make wax pattern(mould of metal frame). Then cast the metal following
product instructions.
Use 100μm - 200μm particle size retention beads.

12. Internal Treatment to Finish

2. Alumina Treatment of Metal Frame

Finally, sand-blast (about 0.1 ～ 0.2Mpa) the inside of thejacket crown using alumina powder (about 50μm), thenuse steam cleaner or ultrasonic cleaner to wash, and thendry.
When the jacket crown is placed in the mouth, apply
Repair Primer thinly and dry before applying cement on
the jacket crown. This improves the bonding strength.

Sand-blast (about 0.2 ～ 0.25Mpa) the surface using alumina powder (about 50μm); then use steam
cleaner or ultrasonic cleaner to wash. Then dry.

3. Primer Paste and Light Curing
Apply Primer Paste with a flat brush or a small roundbrush thinly and evenly and leave it for about 120 sec. todry. Then light cure for about 90 sec. (For Non-precious
Metals)

4. Invisible Opaque Application andLight Curing
Apply Invisible Opaque with a flat brush to cover theretention beads, filling the gaps between beads. Light curefor about 90 sec.

5. For Pontic Part Application
For pontic part, apply invisible opaque and light cure for 180 sec.; then apply base and light cure forabout 180 sec. Apply Opaque and light cure for about 180 sec.

6. Opaque Application and Light Curing

19(Facing Crown)
Apply Opaque with a flat brush and light cure for about 180 sec. In cases where metal color is visible,
repeat this step until the color is concealed. If the transparencies of incisal area or color tones ofcervical area need to be emphasized, use Opaque Special Color.

20

Basic Build-up Layering for Facing Crown, Bridges and Gum* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

7. Gum Opaque Application

13. Final Light Curing

To reproduce gingival area, use Gum Opaque to conceal
the metal color. Apply Gum Opaque and light cure forabout 180 sec. If required, use Gum Stain to characterize.
Gum Stain should not be used for surfaces, but is to be
used between layers.

After final layering, apply TWiNY Resin Air Barrier as thinly
as possible to avoid immature curing and leave it for
about 60 sec. to dry. Then light cure it for about 180
sec. as a final light curing. If Air Barrier is applied thickly, it
is difficult to dry. The brush used for Air Barrier should be
washed with water.

8. Cervical Application and Light Curing(Facing Crown)
Apply Cervical or Opaque Dentine starting from the neck to the incisal area, applying progressively
thinner, taking subsequent color gradation into consideration. Light cure for about 60 sec.

14. Corrections to ShapeCorrect the shape using a carborundum or diamond point.

9. Dentine Application and Light Curing
Apply Dentine to form the required dentine core shape and light cure for about 60 sec.
Using Body Resin Flow makes it easier to layer cervical area and cavity bottom.

10. Enamel Application and Light Curing
Apply Enamel to form the required crown shape and light cure for about 60 sec.

11. Translucent Application and Light Curing

In cases of additional layering after correcting the shape,
apply Repair Primer thinly with a brush on grainedcorrected surface and leave it for about 60 sec. to dry.
Apply Repair Liquid thinly on the same area. Applycomposite resin such as Dentine or Enamel
correspondingly and light cure. Apply TWiNY Air Barrier on
the additional layering area, then light cure for about 180
sec. as a final curing. Again correct the shape to finish.
(Same steps as for Jacket Crown)

In cases where Translucent is required, apply Translucent and light cure for about 60 sec. For theintermediate color expression between Translucent and Enamel, apply Translucent Enamel. For
discoloring expressions, apply Effect partially.
Using Body Resin Flow can avoid entrapping of air and makes it easier to create delicate color tones
and shaping.

16. Heat Curing

12. Gum Application and Light Curing

Remove the facing crown or bridges from the plastermodel and heat cure at about 110℃ for about 15
minutes using a heat curing machine.

Apply Gum and light cure for about 60 sec. to reproduce
gingival area. In order to express Melanin pigment ortransparency of surface layer, apply Gum Modifier andlight cure for about 60 sec.
Using Body Resin Flow makes it easier to layer cervicalarea and cavity bottom.

21

15. Additional Layering Preparation after
Corrections to Shape* In cases where Gum is used for a wide range of connected teeth,
application should be carried out one by one individually to avoid
deformation of the metal frame caused by curing shrinkage.

17. Finishing
Remove any scars with paper cone and silicone point tomake the surface smooth.

22

Basic Build-up Layering for Facing Crown, Bridges and Gum* Conventional curing time is indicated in the following steps.
In case, The LED CURE Master is used, please confirm "Curing Schedule" on page 11.

18. Glazing

TWiNY Flow Application Examples
TWiNY Flow is useful for the cases listed below. However, since this product was mainly
designed for color tone
adjustment, please use TWiNY Opaque, Dentine and Enamel for basic applications.

Polish for glazing by using brush or fabric buff with C&B
Diamond Polisher or C&B Nano Diamond Polisher to finish.

CA1 Flow

WE Flow
CA1 Flow

Cervical

Inlay cavity

White Band

TGlass Flow,
T Flow
AM Flow

WE Flow

Orange Flow

Pit and fissure

CT2 Flow

Cusp marginal area

Mamelon Structure

G1 Flow

T Flow etc
DA3 Flow
E3 Flow

G5, 7 Flow

23
Gum

Repairing air bubbles

24
Pouring in pontic area

Example for Molar Jacket Crown

1. Cervical Application (CA1 Flow)

6. Color adjustment of Pits and Fissures

TWiNY Flow can be applied directly from the syringe inorder to save working time. For making small adjustments,
use a brush or a spatula. Be careful not to apply too
thickly.

TWiNY Flow can express the color tone of the surface
layer, which Stain cannot. Use TWiNY Flow to adjust thecolor of pits and fissures.

2. Apply Paste Resin (DA3)

7. Color Adjustment of Cervical Area

For Dentine application, use Paste type, Dentine (DA3).
For basic shade application or for thick layering, use paste
type as it is subject to less shrinkage.

3. Color Expression of Molar Center(Orange Flow)(Orange Flow, CT2 Flow)

Use TWiNY Flow to adjust the color tone of cervical area.
As TWiNY Flow can be applied thinly, it is easy to makeminor adjustments.

8. Color Adjustment of Cusp Top andMarginal Area (WE Flow, CT2 Flow)

Adjust the base color tone of molar center.

WE Flow and CT2 Flow are used for color adjustment ofcusp top and marginal area.

4. 完成
Application of Ridges or Streamlinesof Occlusal Surface (TE Flow, CT2 Flow)

9. Completion of Color Adjustment of
Molar Jacket Crown

Apply TWiNY Flow on occlusal surface. Apply ridges or
streamline using a spatula or a brush.

As TWiNY Flow has optimal flowability, it can reproduce
the natural shape of ridges and streamlines when themolar jacket crown is made. As these products can beapplied on surface layer, it makes it possible to perform
esthetic expressions at a higher level.
After color adjustment, the same light curing steps as for
TWiNY Paste Type are required. After final layering, apply
TWiNY Air Barrier and carry out final light curing and heatcuring.

5. Color Blend of TWiNY Flow
(Orange Flow, CT2 Flow, T Flow)25

Blend TWiNY Flow to express color tone.
* Take due care to mix them carefully because if air
bubbles are entrapped, the strength will be lowered.
TWiNY Flow and TWiNY Paste Resin cannot be mixed.

26

Example of Gingival area

Example for Facing Crown

1. White Band Application of Facing
Crown (WE Flow)

1. Expression of Melanin Pigment

Use WE Flow to express white band of facing crown.
Direct application can shorten working time.

After applying Paste type such as G1 ～ G7, apply TWiNY
Flow to express the coloration of melanin pigment.

2. Dentine Application (DA3)

2. Color Adjustment of Cervical Area
(G1 Flow)

For Dentine application, use Paste type, Dentine (DA3).
For basic shade application or for thick layering, use paste
type as it is subject to less shrinkage.

Expressing the lighter color of cervical area is easier withTWiNY Flow.

3. Expression of Translucent Layer

3. Expression of Blood Vessels (G Dark Red)(T Glass Flow)

Apply T Glass Flow between mamelon structures. As it isof the flowable type, air bubble entrapping can bestrained.

4. Color Blend of TWiNY Flow
(T Flow, CT2 Flow, CT4 Flow, T Blue Flow, GM Gray Flow)

27(GM Gray Flow)

For expressing blood vessels of gingival area, use Stain;
however, Stain cannot be used for surface layer, so apply
TWiNY Flow (GM Trans Flow) on top of the Stain color.

4. Blending Colors(T Flow, CT2 Flow, GM Gray Flow)

Blending colors of TWiNY Flow makes it easier to express
color tone of transparency, while it is difficult to do sousing Stain. Take due care to mix them carefully because
if air bubbles are entrapped, the strength will be lowered.

To reproduce the intricate color tones of gingival area, mix
to reproduce natural textures. Take due care to mix
carefully, because if air bubbles are entrapped, thestrength will be lowered.

5. Color Tone Expression of Mesiodistal
Incisal Area (T Blue Flow)

5. Color Adjustment of Gingival Area

As a color expression of mesiodistal incisal area, apply TBlue Flow with a brush. For expression of center incisal
area, apply AM Flow and Orange Flow. At the same time,
adjust the color of cervical area. After translucent layering,in the same way, apply E3 paste resin for color
adjustment of cervical area.

TWiNY Flow makes it possible to express deep natural
gradation color tones of gingival area, which can be used
for purposes such as superstructure of implant.

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Example of Inlay Cavity Bottom and Pontic Area

N.B. : Technical Directions and Points for Attention

1. Application of Cavity Bottom of Inlay

1. Features of polishers

As TWiNY Flow has good flowability, it blocks cavities
well and working time can be shortened.
Be careful not to apply too thickly, taking curing shrinkage
into consideration.

● C&B Diamond Polisher
C&B Diamond Polisher has not only excellent abrasive
performance, but is also highly effective for removing
scars caused during polishing. These characteristics
shorten the working time. Use it at a rotating speed lower
than 10,000 rpm.
● C&B NANO Diamond Polisher
C&B NANO Diamond Polisher contains fine diamondparticles at a 60% concentration, enabling high-precision
polishing. It can be used at 20,000rpm rotating speed.
The rotating speed of C&B NANO Diamond Polisher isdifferent from that of C&B Diamond Polisher.

2. Pouring in the Pontic Area
AOptimal flowability makes it easier to pour in pontic area.

Polisher[Cautions]
As TWiNY Flow has the property of thixotropy＊, please pull the piston back about 2mm when storing
after use in order to avoid the following:* Resin left at the tip of nozzle hardens and it makes it difficult to use next time.
* Handling may be different at the beginning and end of use.
* Resin may leak due to pressure.
* Thixotropy: the material’s viscosity becomes higher as pressure is increased.

Diamond Particles (μm) Rotating Speed (rpm)C&B Diamond Polisher

1～2

10,000 and less

C&B NANO Diamond Polisher

Less than 0.5

20,000 and less

2. Polishing occlusal surface of posterior
tooth
Remove scars on the surface by sand grinding/polishing,or using silicone. Then use a Robinson Brush to polish witha small amount of a polisher. In the case of C&B Diamond
Polisher, use it at a rotation speed lower than 10,000rpm(8,000rpm is recommended.), In the case of C&B NANO
Diamond Polisher, use the product at a rotation speed
lower than 20,000rpm (15,000 rpm is recommended.)

3. Finishing
Apply a little C&B Diamond Polisher or C&B NANO
Diamond Polisher on a fabric buff, and polish all over thecrown to make the surface smooth.

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